title: The limits of X-ray performance in the diagnosis of gastric duodenal diseases.
authors.forename: R
authors.initials: R
authors.lastname: BIRKNER
mesh_terms: D004378:Duodenal Diseases; D004386:Duodenum; D041981:Gastrointestinal Tract / Q000000981:diagnostic imaging*; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging*